摘要
利用函数平均技巧 ,改进并推广了有关论文中所给出的二阶时滞微分方程解的振动性准则 ,得到了一类二阶时滞微分方程解的振动性质的一些新的充分判据 .
This paper makes use of the skill on the function average,improves delay differential equations of second order of oscillation theorems in some theses,and some new oscillation theorems for delay differential equations of second order are established.
出处
《安徽师范大学学报(自然科学版)》
CAS
2002年第2期115-118,共4页
Journal of Anhui Normal University(Natural Science)
关键词
二阶时滞微分方程
振动
解
正则解
delay differential equations
oscillation
proper solution